<?php

/**
 * 将数据导出到 excel 文件，直接浏览器下载或保存到文件
 * http://www.php.cn/php-weizijiaocheng-391228.html
 * @param array $title   标题行名称
 * @param array $data   导出数据
 * @param string $fileName 文件名
 * @param string $savePath 保存路径
 * @param $isDown   是否下载  false--保存   true--下载
 * @return string   返回文件全路径
 * @throws PHPExcel_Exception
 * @throws PHPExcel_Reader_Exception
 * exportExcel(array('姓名', '年龄'), array(array('a', 21), array('b', 23)), '档案', './', true);
 */

function exportExcel($title = array(), $data = array(), $fileName = '', $savePath = './', $isDown = false)
{
    include_once './Classes/PHPExcel/IOFactory.php';
    $obj = new PHPExcel();

    //横向单元格标识

    $cellName = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'AA', 'AB', 'AC', 'AD', 'AE', 'AF', 'AG', 'AH', 'AI', 'AJ', 'AK', 'AL', 'AM', 'AN', 'AO', 'AP', 'AQ', 'AR', 'AS', 'AT', 'AU', 'AV', 'AW', 'AX', 'AY', 'AZ');

    $obj->getActiveSheet(0)->setTitle('sheet名称'); //设置sheet名称

    $_row = 1; //设置纵向单元格标识

    if ($title) {
        $_cnt = count($title);
        $obj->getActiveSheet(0)->mergeCells('A' . $_row . ':' . $cellName[$_cnt - 1] . $_row); //合并单元格
        $obj->setActiveSheetIndex(0)->setCellValue('A' . $_row, '数据导出：' . date('Y-m-d H:i:s')); //设置合并后的单元格内容
        $_row++;
        $i = 0;
        foreach ($title as $v) {
            //设置列标题
            $obj->setActiveSheetIndex(0)->setCellValue($cellName[$i] . $_row, $v);
            $i++;
        }
        $_row++;
    }

    //填写数据

    if ($data) {
        $i = 0;
        foreach ($data as $_v) {
            $j = 0;
            foreach ($_v as $_cell) {
                $obj->getActiveSheet(0)->setCellValue($cellName[$j] . ($i + $_row), $_cell);
                $j++;
            }
            $i++;
        }
    }

    //文件名处理

    if (!$fileName) {
        $fileName = uniqid(time(), true);
    }
    $objWrite = PHPExcel_IOFactory::createWriter($obj, 'Excel2007');
    if ($isDown) {
        //网页下载
        header('pragma:public');
        header("Content-Disposition:attachment;filename=$fileName.xls");
        $objWrite->save('php://output');
        exit;
    }
    $_fileName = iconv("utf-8", "gb2312", $fileName); //转码
    $_savePath = $savePath . $_fileName . '.xlsx';
    $objWrite->save($_savePath);
    return $savePath . $fileName . '.xlsx';
}

exportExcel(array('姓名', '年龄'), array(array('a', 21), array('b', 23)), '档案', './', true);
